Process for binding skeins



Feb. 22, 1955 E. HAUG 3 FOR BINDING SKEIEIS PROCES hets-Sheet l Filed 001;. 24, 1950 INVENTOR EM IL. HAUG Feb. 22, 1955 E. HAUG PROCESS FOR BINDING SKEINS Filed Oct. 24, 1950 4 Sheets-Sheet 2 INi/ENToR I Emu. HAuey qf'fys AM Feb. 22, 1955 E. HAUG PROCESS FOR BINDING SKEINS 4 Sheets-Sheet 3 Filed Oct. 24, 1950 IN VENTOR EMIL. HAUG- w mu 7 7 14197::

Feb. 22, 1955 E. HAUG 2,702,426

PROCESS FOR BINDING SKEINS Filed Oct. 24, 1950 4 Sheets-Sheet 4 INVF/VTOR Emu. HAUG- United States Patent PROCESS FOR BINDING SKEINS Emil Hang, Echterdingen, Wurttemberg, Germany, assignor to Schachenmayr, Mann & Cie., Salach, Wurttemberg, Germany, a company of Germany Application October 24, 1950, Serial No. 191,803

Claims priority, application Germany October 31, 1949 1 Claim. (Cl. 28-21) The invention relates to a process and a device for binding skeins by means of binding threads. Known yarn winding reels are so arranged that a great number of skeins each comprising a definite amount of yarn can be wound, for example it is possible to form 30 skeins each of 50 gr. After winding these skeins, each skein must be bound with a previously prepared piece of binding thread, and the end of the skein of yarn connected to its supply severed. This manual operation, which must be undertaken 30 times with a reel with 30 winding places is extremely tedious. By means of the process and apparatus according to the present invention all steps at all the winding places can be simultaneously carried out and in contrast with binding hitherto effected by hand can be mechanically performed.

The process consists in that simultaneously, in the case of each skein to be wound, the free ends of yarn and binding thread lying over the reel are seized by gripping devices arranged on the reel, so that an open loop is formed out of the binding thread by means of a loop forming member arranged on the reel. The binding thread at the end of the loop is also seized and then severed, the yarn is wound as a skein lying in the open loop, and the yarn end of the formed skein is led to the originally seized ends of yarn and binding thread and also held fast and severed. The single binding thread end and the associated binding thread and yarn ends respectively are drawn over the skein by guiding fingers movable axially with respect to the reel in opposed directions whereby the binding thread now looped round the skein and the yarn ends are tensioned and then, a knotter engages in said tensioned yarn and thread and said knotter seizes the yarn and thread ends and draws them through the formed knot loop after cutting the group of yarn and thread ends between the knot and guiding finger.

The apparatus for carrying out the process according to the invention consists of a series of gripping and guiding members for the yarn and binding thread located radially at intervals lengthwise of a winding reel for winding a plurality of skeins and a corresponding series of oscillatable cutting and knotting means arranged on the framework of the reel, corresponding elements of each of said series being operable in common.

In detail the parts of the device according to the invention are formed as follows:

Each winding place on the reel for a skein is defined by a pair of spaced apart stops with which are associated gripping fingers movable in the axial direction and located outside of the intermediate winding space defined by the stops. Each series of gripping fingers is mounted on a rod movable in the axial direction of the reel, movement of the rods controlling movement of the fingers.

For effecting this control, means are provided at an end face of the winding reel through which the rotary motion of two oppositely moving levers adjacently disposed is connected into the axial motion of the rods carrying the gripping fingers, in known manner. Furthermore a stirrup movable against spring action is provided hrough which the two levers may be brought into the position corresponding to the release position of the gripping fingers whereby a dead centre position effected by an eccentric device is avoided. Feeds or guides for the yarn and binding thread are provided at each winding position advantageously in the form of short pieces of tube. These feeds or guides are arranged each on an axially movable rod or the like.

A loop forming finger is mounted resiliently on the reel and spaced laterally in the winding direction from each winding place defined by the stops, said loop-forming finger being directed to the Winding position against spring action. Between each winding place and the loop-forming finger belonging thereto, near to the winding place, there are rovided two fingers movable in opposite directions for guiding the yarn and binding thread. These fingers are so cranked that their connections with axially displaceable rods controlling their movement do not touch the skeins even when the fingers pass over the skeins. On the framework of the machine there is provided a set of shears operable in common by means of a bar movable in the axial direction of the reel corresponding in numher to the number of the winding places, said shears being so oscillatably arranged that they can be oscillated in between the feeds for the yarn and the binding thread and the gripping devices. Moreover on the framework of the machine a set of knotting devices, driven in common by means of a shaft arranged in the axial direction of the reel, corresponding in number to the number of the winding places, is so oscillatably mounted that each knotter point can engage the yarn and binding thread tensioned between the guiding fingers after their crossing.

With the osciliatable set of knotting devices a second set of shears movable in common by means of a rail movable in the axial direction of the reel is so connected that each pair of shears can sever the yarn and binding thread between a guiding finger and a knotting device.

The drawings illustrate one embodiment of a device according to the invention and in combination therewith the most important stages of the process.

Fig. 1 shows a diagrammatic representation of the reel with the device according to the invention,

Fig. 2 is a perspective view of a group of the devices arranged on the winding reel.

Fig. 3 illustrates the control of the gripping devices.

Figs. 4 and 5 are a front View and side view respectively of a part of a set of shears and Fig. 6 is a perspective view of a group of the devices arranged on the winding reel in a position of the winding reel when the latter has been partially rotated in the direction of the arrow A indicated in Fig. 1,

Fig. 7 is a perspective view illustrating the same group as shown in Fig. 6 after the finger has been displaced axially by means of a rod shown in Fig. 2,

Fig. 8 is an end view in axial direction illustrating the group shown in Figs. 6 and 7, partially in section, after the reel has been partially rotated in the direction of the arrows A and A indicated in Figs. 6 and 7 respectively with respect to the position shown in Figs. 6 and 7.

Fig. 9 is a plan view of the group when in the same position as in Fig. 8.

Figs. 10 to 12 are perspective views of the group after the reel has been rotated back to the position shown in Fig. 2, with Figs. 10 and 11 differing only with respect to the position of the feed and yarn, and Fig. 12 differing from Figs. 10 and 11 with respect to a slightly changed point of view and to the position of the finger,

Fig. 13 is a perspective view similar to Fig. 12 with a part of the set of shears being shown,

Fig. 14 is a perspective view similar to Fig. 12 showing a determined amount of yarn having been wound and the binding thread applied,

Fig. 15 is a perspective view similar to Fig. 14, the yarn thread being clamped between the finger and the adjacent stop,

Fig. 16 is a perspective view similar to Fig. 15, showing the yarn thread having been cut and the binding thread on the one hand and the binding thread associated with two yarn ends on the other hand drawn over the skein,

Fig. 17 is a perspective view similar to Fig. 16 showing a single knotting device touching the group of four threads.

Fig. 18 is a perspective view similar to Fig. 17 showing the single knotting device rotated, and

Fig. 19 is a perspective view similar to Fig. 18 showing the group of threads cut and the knot completed.

A winding reel 1, is mounted in known manner on framework 2 so that the formed skeins can be with drawn. Spools 3 and 4 for the yarn 5 and the binding anoaaae thread 6 are mounted on the framework 2. Yam 5 and thread 6 are led to the vfeeds 7 and 8. From the yarn feed 7 and the binding thread feed 8, yarn 5 and thread 6 initially hang down from these feeds as is shown in Fig. l. The winding reel 1 has tWQoscillatable segments 9 which, after winding and after rotation of the reel to bring them to a topmost position, are so oscillated that the skein is untensioned.

Gripping and guiding devices 10 with their substantially radially arranged fingers and stops, are arranged diametrically opposed to the segments 9, considered from the axis of symmetry through the cross-section defined by the segments. 8

In the following description, the process will be considered in general only atone of the winding places, e. g. the formation and binding of only one skein. A gripping device necessary for the formation and binding of a skein includes (Fig. 2), two stops 11 which define the winding place 12 viewed in the axial direction of the reel. With each stop 11, there is associated a gripping finger 13 or 1.4 movable in the axial direction outside the intermediate winding space. All gripping fingers 13 are fastened on to a rod or the like extending over the whole length of the winding reel 1 and all the gripping fingers 14 on a similar rod or the like 16.

The rods 15 and 16 are displaceable in the axial direction of the reel. The gripping fingers 13 and 14 are provided with guides 17. In the embodiment illustrated there is a stop 11 for a winding place 12 co-operating with a gripping finger 14, with the stop 11 of the neighbouring winding 12, co-operating with the gripping finger 13 (Fig. 2.) All gripping devices 10 are mounted on a longitudinal ledge 18 of the reel 1.

At'the beginning of the process the reel 1 will be rotated by hand in the direction of arrow A in Fig. 1 until the gripping and guiding devices 10 touch the threads 5 and 6 hanging down from the yarn feed 7, and binding thread feed 8. For better differentiating between the yarn 5 and binding thread 6 in Figs. 2 to 19, the yarn 5 is shown in full lines and the binding thread 6 is shown in dotted lines.

At this stage the threads 5 and 6' lie against the guide 17 of the finger 14, Fig. 6. By axial displacements of the rod 16 and the finger 14 in the direction of arrow C inFig. 7, the finger 14 is now brought near to the appropriate stop 11, so that the threads 5 and 6 are clamped between the finger 14 and the appropriate stop 11 (Fig. 7).

Then there follows a further partial rotation of the reel 1, in the opposite direction to that of winding which opposite direction corresponds to that of the arrow A in Fig. 1 and is indicated by the arrows A and A" in Figs. 6 and 7 respectively until a loop-forming finger 19 also mounted on the reel passes into reach of the yarn and thread 5 and 6. Each finger 19 is rotatably mounted on a rod 20 fastened to the ledge 18 of the reel 1, and i provided with a spring 21 hearing against a tube 22 also fastened to the ledge 18 (Fig. 2). The spring 21 is arranged so that the loop-forming finger 19 can be brought to the gripping device 10 against the action of the spring, as shown by arrow D in Fig. 2.

For the formation of a loop, the feeds 7 and 8, fastened to bars 23 and 24, displaceable in the axial direction of the reel, will be so far displaced axially in the direction of .the arrows E and F shown in Fig. 9 that they rest in a zone defined by planes running vertically through the stop 11 and the finger 13. In Fig. 9 the actual position of the feeds 7 and 8 is indicated in full lines, the former position is indicated in dotted lines. As shown in Fig. 8 the loop-forming finger 19 is in a higher position than the clamping spot formedby the finger 14 and the adjacent stop 11, and the feeds 7 and 3 are in a higher position than the loop-forming finger 19. Therefore, if the feeds 7 and 8 are displaced in the axial direction, as shown by the arrows E and E" in Fig. 9, the yarn 5 and the binding thread 6 will be laid over the loop-forming finger 19, as shown in Fig. 9, which is a plan view.

If the reel is now so far rotated back in the direction of the arrow B, shown in Figs. 10 and 11 (which corresponds to the arrow B shown in Fig. 1), that the gripping devices 10 are again uppermost (Fig. 10), then the yarn and threadS and 6 laid over the loop-forming finger 19 by the step described hereinbefore will be seized by the loop-forming finger 19, with its curved end, and yarn and thread drawn off from the spools ,3, 4. At h 59 t e an o sl is q me rom e arn I and thread 5 and 6 on account of the beforementioned axial displacement of thefeeds v7, 8. There-upon the .yarn

feed 7 is moved back by axial displacement of the rod 23 in the direction of the arrow H, shown in Fig. 11, so far in relation to the beforementioned displacement thatthe yarn running from the yarn feed 7 to the loop forming finger 19 passes over the'winding place 12 (Fig. 11). In Fig. 11 the actual position of feed 7 is indicated in full lines, the former position is indicated in dotted lines. Moreover, the gripping finger 13 will be pressed by axial displacement of the rod 15 in the direction of the arrow I shown in Fig. 12 against the stop 11 so that the piece of the binding thread 6 running from the fee'd'8 to the loop-forming finger 19 will be clamped fast. In Fig. 12 the actual position of the finger 13 is indicated in full lines, whereas the former position is indicated in dotted lines. Subsequently this binding thread will be cut off between the feed 8 and the finger 13 (Fig. 13).

For this latter purpose a set of shears 26 oscillatable about an axis 25 is mounted on the reel framework 2 on the same side as the feeds 7 and 8 for yarn and binding thread (Fig. 1). The set of shears consists of a bar or the like 27 to which rigid cutting knives 28 are fastened. The movable cutting knives 36 are pivotally fixed to the shear knives 28 and to the bars 27 by a rivet 29, and are operated in unison by a bar 31 movable axially of the reel, Figs. 4 and 5, the closing of the shears being effected against spring action (not shown).

In Fig. 4 knives 30 are indicated in full lines in cutting position whereas one of them is shown in dotted lines in open position of the shear sets. The movement direction of this knife 30 for opening the set of shears is indicated by the dot-dash arrow K. In Fig. 13 the arrow K indicates the movement direction of bar 31 for cutting the binding thread 6, and the double arrow L indicates the oscillating directions of the set of shears to bring them near to the threads 6 and to move it off the threads.

The winding of a determined amount of yarn follows by rotating the reel 1 in the direction of the arrow B" in Fig. 14, which arrow corresponds to the arrow B in Fig. 1. It is preferable but not shown in the illustration that the'switching off of the rotary motion of the reel 1 may be so adjusted that the gripping devices 10 again stand uppermost. To efiect this position a pulley can be arranged on theaxis of the reel, this pulley being provided at its circumference with a groove or nick which is engaged by a'pawl' resiliently arranged on the frame 2. "After winding, Fig". 14, the feed 7 for the yarn 5 will be so'far displaced by means of the rod 23 in axial direction opposite to the original displacement direction that the yarn 5 passes overthe guide 17 of the gripping finger 14 (Fig. 15).

In Fig. 15 the feed 7 after having been displaced so that the yarn 5 stands over the guide 17 for the gripping finger 14,'is shown in full lines, whereas the former position is shown in dotted lines. The displacement direction is illustrated by the arrow M.

-After the already mentioned displacement of the feed 7 for the yarn so that the yarn 5 stands out of the reach of the guide 17 for gripping finger 14, the gripping finger 14 will be loosened by axial displacement of the rod 16.

Subsequently follows a partial rotation of the reel in the winding direction, corresponding to the arrow B"" in Fig. 15, so that the yarn is inserted between the gripping finger 14, in the opening position, and the appropriate stop 11, whereupon the gripping finger through axial displacement of the rod 16 is again brought into clamping position. In Fig. 15 the clamping position of finger 14 is shown in full lines, whereas the loosening position is shown in dotted lines. The movements by which the finger 14 is brought into these positions are illustrated by the double arrow N. Thereupon the yarn 5 is severed by means of the oscillatable shears 28, 30. This severing process and the oscillating movement of the shears set is illustrated in Fig. 15 by a pair of knives 28, 30 and a double arrow Z both shown in dot-dash lines.

At the same time as the feed 7 is displaced by means of the bar 23, the feed 8 for the binding thread 6 has been moved back again into its original position by means of the rod 24. In Fig. 16 the original position of feed 8 is shownin full lines, whereas the intermediate position is shown in dotted lines, and the direction of displacement is illustrated by the arrow 0. For completion of a loop, inaddition to the gripping fingers 13, 14 and the loops forn' ing finger 19 there are provided close to a winding place 12 two oppositely running guiding fingers 33 and 34 movable in the axial direction or" the reel. These guiding fingers are in their ieitial position right and left of a winding place 12. The guiding fingers 33 are arranged on an axially movable rod or the like 35 and the fingers 34 on a similar rod 36 which is guided on the ledge 18 (Figs. 2 and 8).

Moreover, the guiding fingers 33 and 34 are so cranked that their connections with the bars 35, 36 do not touch the skein 32 even when the fingers pass over the skein.

There is effected then by means of rods 35 and 36 a displacement in the opposite direction to one another of the guiding fingers 33 and 34 past and over the skein 32 until the guiding finger 33 stands approximately at the gripping finger 14 and the guiding finger 34 approximately at the gripping finger 13 (Fig. 16). In this motion of the guiding fingers 33 and 34 which is illustrated in Fig. 16 by the arrows P and Q, the yarn and the binding thread running from the gripping finger 14 to loop-forming finger 19, and the yarn running from the gripping finger 14 to the skein have been seized by guiding finger 34 while the binding thread running from gripping finger 13 to the loop-forming finger 19 has been seized by guiding finger 33. By the movement of the guiding fingers 33, 34 the binding thread on the one hand and the binding thread associated with the two yarn ends have been drawn over the skein thus bringing the loop-forming finger 19 nearer to the fingers 33, 34 against the action of its spring 21 as is illustrated in Fig. 16 by the arrow R, the nearer position of the loop-forming finger 19 being shown in full lines and the former position being shown in dotted lines.

A set 39 of knotting appliances corresponding in number to the number of the winding places driven in common by means of a crank 38 by means of a shaft 37 arranged in the axial direction of the reel, are oscillatably mounted about two axes 40, 41 on the opposite side of the framework 2 to the feeds 7 and 8, Fig. 1.

With this set of knotting appliances 39 there is connected a set of shears 42 oscillatable together therewith, these shears being formed in similar manner to the set of shears 26 (Fig. l). The reel is now further rotated in the winding direction, by a partial rotation corresponding to the arrow B in Fig. 1, so far that on oscillating the knotting appliance 39 about the axis 40, the single knotter points just touch the group four threads 44 tensioned between the guiding fingers 33, 34. By a second small oscillation about the axis 41, the knotter point 43 engages in the group of threads, so that they form an angle between the guiding fingers 33, 34 thus preparing the group 44 for the knotting process, Fig. 17. The thereupon effected formation of a knot with a knotting device of the kind shown is known in itself. The knotter and therewith in particular its point 43 executes a rotation about its axis according to the arrow T indicated in Fig. 18 and thereby winds the group of threads once about the knotter point. During this rotation a hook 45 arranged in the slotted point 43 and indicated in Fig. 19 by dotted lines seizes the part of the group of threads 44 running from the knotter point 43 to the guiding finger 33 and draws it in between the two limbs of the slotted knotter point 43, so that the knot is prepared (Fig. 18).

The hook 45 is moved by a disc 46 which is oscillatably mounted about an axis 47 in the slot of the knotter point and is regulated by a screw surface 48 surrounding the knotter point in cup-like manner.

Finally the four threads between the guiding finger 33 and the knotter point 43 will be cut by shears of the set of shears 42 indicated in Fig. 18 by dotted lines and oscillated with the knotting devices 39, and the knotting devices will, together with the sets of shears, then be swung back to the position of rest. The knotter point 43 in this movement, illustrated in Fig. 19 by the arrows U and V, draws itself out of the loop 49 formed from the group of threads 44 wound oif on its surface, where- 6 by the hook 45 draws through the loop 49, according to the arrow S in Fig. 17, that part of the group of threads 44 seized by it on the rotation of the knotter point and originally tensioned between knotter point and guiding finger, thus completing the knot 5%) (Fig. 19).

After the reel has been rotated so far that the oscillatable segments 9 are uppermost and after these segments 9 have been adjusted to relieve the tension on the skein on the reel 1, the skeins can be drawn off the reel. In this position of the reel 1 the gripping fingers 13, 14 will be removed from the stops 11 by axial movement of the rods 15, 16 so that the thread remainders will fall out. After the oscillatable segments have been again set up the process can begin afresh.

In order that the gripping fingers 13, 14 may be not automatically loosened from their clamped position and secondly that they may be brought back into their starting position by manually operated means, there can be provided at one end face of the reel 1, preferably at the driving side, means by which the oppositely acting rotary motion of the two adjacently disposed levers 51, 52, illustrated in Fig. 3, can be transformed in known manner into axial movement of rods 15, 16 carrying the gripping fingers 13, 14. There is also provided a stirrup 55 operable by a knob 54 and movable against a spring 53 in the direction of the arrow W indicated in Fig. 3 through which both levers 51, 52 can be brought into the position corresponding to the position of release of the gripping fingers 13, 14. The position of release of fingers 13, 14 and the corresponding position of the stirrup 55 and the arrows X and Y indicating the rotation directions for rotating the levers 51 and 52 into the position corresponding to the release position of the fingers, are indicated in dot-dash lines in Fig. 3. An eccentric arrangement having an over-center action (not shown) may be provided on each axis of the levers 51, 52 to hold them in their end position.

With regard to the groups of commonly operable single devices, for instance the group of all feeds 7, the group of all feeds 8, the group of all fingers 13, the group of all fingers 14, the group of all fingers 33, the group of all fingers 34, the group of all loop-forming fingers 19, the group of all sets of shears 26, the group of all knotters 39, the group of all sets of shears 42 and the group of segments 9, they can be so arranged as shown that the groups are each operated by hand by means of the rods, for instance 23, 24, 15, 16, 35, 36, rails, for instance 31, and shafts, for instance 20 or the like. The single devices thus work semi-automatically or the arrangement may be such (not shown) that the Whole drive including the control, is effected automatically.

I claim:

A process for the binding of skeins of yarn which comprises supplying yarn and binding thread so that their free ends lie over each other, securing said ends of said yarn and thread, forming an open loop from the binding thread, gripping the other end of the formed loop of binding thread and severing its connection with a thread supply, winding the yarn into a skein lying in the open loop, leading the yarn end of the formed skein to, and gripping it with, the originally clamped together yarn and binding thread ends and severing the yarn end of the formed skein from its supply, drawing the single binding thread end and the associated binding thread and yarn ends respectively over the skein, whereby the binding thread now looped around the skein and the yarn ends are tensioned, and seizing the yarn and the thread ends and drawing them through the loop to form a knot after cutting the group of yarn and thread ends.

References Cited in the file of this patent UNITED STATES PATENTS 1,068,847 Berthold July 29, 1913 

